Abstract

A controlled temperature room experiment evaluated the effects of four day/night tem-perature treatments on flowering, fruit set and growth of ‘Fuyu’, the most important non- astringent persimmon cultivar grown in Australia. Fruit set of hand-pollinated flowers at 17/12°C and 22/17°C was similar and averaged 53.6 and 54.9%, respectively. In contrast, fruit set of hand-pollinated flowers at 27/22°C and 32/27°C was significantly reduced by 58 and 77%, respectively. For the three higher temperature treatments, fruit set of non- pollinated flowers was very low (